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The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas.

Ideal data logger for underwater measurements in shallow wells, streams, lakes and freshwater swamps.

Hobo Maintenance Kit for pH and Temperature Data Logger MX2501

Hobo Protective Case for Water Temperature Pro v2 Data Logger U22-001

Low-cost, fully integrated soil moisture logger with convenient Bluetooth wireless data offload.

Replacement DO Sensor Cap for U26-001. The DO sensor caps have a planned 6-month deployment life so make sure to stock up.

The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas.

Ideal data logger for underwater measurements in shallow wells, streams, lakes and freshwater swamps.

Ideal data logger for underwater measurements in shallow wells, streams, lakes and freshwater swamps.

Replaces the original DO sensor cap of the HOBO MX800 Series DO sensor (W-DO).

A protective plug to seal unused sensor inputs on MX800 data loggers.

Can be used in place of the standard protective guard for protection against fouling during deployment.

Provides the connection between the HOBO MX802 logger and a sensor.

Hobo Protective housing for conductivity and water level data loggers (U24-& U20-)

The HOBO Mounting and Leveling Fixture 2003S is an accessory for light sensors and for the MX2308 and MX2309 data loggers.

A protective enclosure for Onset's HOBO MX801 data logger.

Hobo Anti-biofouling Copper Guard for Dissolved Oxygen Data Logger U26-001

Hobo Sodium Sulfite Solution for Disolved Oxygen Data Logger U26-001

Hobo protective thermoplastic elastomer boot for temperature data logger MX2203 - pack of 5

Hobo Anti-biofouling Copper Guard for pH and Temperature Data Logger MX2501

Hobo Calibration Kit for pH and Temperature Data Logger MX2501

This bracket is required for mounting HOBO MX2301A and MX2305 loggers in either an RS1 or M-RSA solar radiation shield.